A complete 4″ double-inlet installation kit for WhisperLine inline fans, including dual grilles, backdraft dampers, clamps, and a Y-adapter—perfect for split-duct applications.
Single Family/Manufactured
Housing. Renovation/Remodeling.
Ventilation Design Approach
Spot Ventilation. Continuous Ventilation.
Duct Diameter
4"
Fan Type
Fan Only
Industry
Residential. Light
Commercial.
Mounting Options
Ceiling Mount
Product Family Name
WhisperLine
Installation:
The kit is compatible with Panasonic WhisperLine inline fans (e.g., FV‑10NLF1, FV‑20NLF1).
Install each grille in ceiling or wall openings using included clamps, attach backdraft dampers, connect both inlets to the fan using the Y-adapter, and secure all duct connections.
Test for airflow and ensure damper operation before finalizing installation.
Maintenance:
Monthly inspect grilles and dampers for dust or debris. Clean with a soft brush or damp cloth, and verify dampers open freely to maintain efficient airflow.